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/*
* The builtin Object object.
* Copyright (c) 1998 New Generation Software (NGS) Oy
*
* Author: Markku Rossi <mtr@ngs.fi>
*/
/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA
*/
/*
* $Source: /home/cvs/entity/libentitynjs/b_object.c,v $
* $Id: b_object.c,v 1.4 2000/07/25 05:25:57 imain Exp $
*/
#include "njs/internal.h"
/*
* Static functions.
*/
/* Global method proc. */
static void
global_method (JSVirtualMachine *vm, JSBuiltinInfo *builtin_info,
void *instance_context, JSNode *result_return,
JSNode *args)
{
if (args->u.vinteger > 1)
{
js_vm_set_err (vm, "Object(): illegal amount of arguments");
js_vm_error (vm);
}
if (args->u.vinteger == 0
|| (args->u.vinteger == 1
&& (args[1].type == JS_NULL
|| args[1].type == JS_UNDEFINED)))
{
/* Create a fresh new object. */
result_return->type = JS_OBJECT;
result_return->u.vobject = js_vm_object_new (vm);
}
else
{
/* We have one argument. Call ToObject() for it. */
js_vm_to_object (vm, &args[1], result_return);
}
}
/* Method proc. */
static int
method (JSVirtualMachine *vm, JSBuiltinInfo *builtin_info,
void *instance_context, JSSymbol method, JSNode *result_return,
JSNode *args)
{
JSNode *n = instance_context;
if (method == vm->syms.s_toSource)
{
char *source;
if (instance_context)
{
result_return->type = JS_UNDEFINED;
/* XXX 15.2.4.3 */
}
else
{
source = "new Object()";
js_vm_make_static_string (vm, result_return, source,
strlen (source));
}
}
/* ********************************************************************** */
else if (method == vm->syms.s_toString)
{
if (instance_context)
js_vm_make_static_string (vm, result_return, "[object Object]", 15);
else
js_vm_make_static_string (vm, result_return, "Object", 6);
}
/* ********************************************************************** */
else if (method == vm->syms.s_valueOf)
{
if (instance_context)
JS_COPY (result_return, n);
else
{
n = &vm->globals[js_vm_intern (vm, "Object")];
JS_COPY (result_return, n);
}
}
/* ********************************************************************** */
else
return JS_PROPERTY_UNKNOWN;
return JS_PROPERTY_FOUND;
}
/* Property proc. */
static int
property (JSVirtualMachine *vm, JSBuiltinInfo *builtin_info,
void *instance_context, JSSymbol property, int set, JSNode *node)
{
if (!set)
node->type = JS_UNDEFINED;
return JS_PROPERTY_UNKNOWN;
}
/* New proc. */
static void
new_proc (JSVirtualMachine *vm, JSBuiltinInfo *builtin_info, JSNode *args,
JSNode *result_return)
{
if (args->u.vinteger == 0)
{
return_native_object:
result_return->type = JS_OBJECT;
result_return->u.vobject = js_vm_object_new (vm);
/* Set the [[Prototype]] and [[Class]] properties. */
/* XXX 15.2.2.2 */
}
else if (args->u.vinteger == 1)
{
switch (args[1].type)
{
case JS_OBJECT:
JS_COPY (result_return, &args[1]);
break;
case JS_STRING:
case JS_BOOLEAN:
case JS_INTEGER:
case JS_FLOAT:
case JS_NAN:
js_vm_to_object (vm, &args[1], result_return);
break;
case JS_NULL:
case JS_UNDEFINED:
goto return_native_object;
break;
default:
/* The rest are implementation dependent. */
JS_COPY (result_return, &args[1]);
break;
}
}
else
{
js_vm_set_err (vm, "new Object(): illegal amount of arguments");
js_vm_error (vm);
}
}
/*
* Global functions.
*/
void
js_builtin_Object (JSVirtualMachine *vm)
{
JSNode *n;
JSBuiltinInfo *info;
info = js_vm_builtin_info_create (vm);
vm->prim[JS_OBJECT] = info;
info->global_method_proc = global_method;
info->method_proc = method;
info->property_proc = property;
info->new_proc = new_proc;
/* Define it. */
n = &vm->globals[js_vm_intern (vm, "Object")];
js_vm_builtin_create (vm, n, info, NULL);
}
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